[INFO] fetching crate rual 0.0.2...
[INFO] testing rual-0.0.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rual 0.0.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rual 0.0.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rual 0.0.2
[INFO] finished tweaking crates.io crate rual 0.0.2
[INFO] tweaked toml for crates.io crate rual 0.0.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88822f0d7bb7e235584bc7e1387c695a2d7149ccb7648437ecf01e683ca63419
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "88822f0d7bb7e235584bc7e1387c695a2d7149ccb7648437ecf01e683ca63419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88822f0d7bb7e235584bc7e1387c695a2d7149ccb7648437ecf01e683ca63419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88822f0d7bb7e235584bc7e1387c695a2d7149ccb7648437ecf01e683ca63419", kill_on_drop: false }`
[INFO] [stdout] 88822f0d7bb7e235584bc7e1387c695a2d7149ccb7648437ecf01e683ca63419
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57c82d2dc9be5091bfed02d4ce5efc21cad3f1b3602763aae9c78fa6e8de11f3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "57c82d2dc9be5091bfed02d4ce5efc21cad3f1b3602763aae9c78fa6e8de11f3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rual v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Punct`
[INFO] [stdout]  --> src/lexing/mod.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::syntax::{Keyword, Punct, Token, TokenType};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]    --> src/execution/mod.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/execution/mod.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/execution/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.exec_expr(&expr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "57c82d2dc9be5091bfed02d4ce5efc21cad3f1b3602763aae9c78fa6e8de11f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c82d2dc9be5091bfed02d4ce5efc21cad3f1b3602763aae9c78fa6e8de11f3", kill_on_drop: false }`
[INFO] [stdout] 57c82d2dc9be5091bfed02d4ce5efc21cad3f1b3602763aae9c78fa6e8de11f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63fef95c9dfc320c2b5dcabdfb753a7ddc8d510f906bdf644e8cf1469073cf29
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "63fef95c9dfc320c2b5dcabdfb753a7ddc8d510f906bdf644e8cf1469073cf29", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `Punct`
[INFO] [stdout]  --> src/lexing/mod.rs:3:30
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::syntax::{Keyword, Punct, Token, TokenType};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rual v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]    --> src/execution/mod.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/execution/mod.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/execution/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.exec_expr(&expr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent`
[INFO] [stdout]    --> src/execution/mod.rs:132:5
[INFO] [stdout]     |
[INFO] [stdout] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/execution/mod.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/execution/mod.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         self.exec_expr(&expr);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `Command { std: "docker" "inspect" "63fef95c9dfc320c2b5dcabdfb753a7ddc8d510f906bdf644e8cf1469073cf29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63fef95c9dfc320c2b5dcabdfb753a7ddc8d510f906bdf644e8cf1469073cf29", kill_on_drop: false }`
[INFO] [stdout] 63fef95c9dfc320c2b5dcabdfb753a7ddc8d510f906bdf644e8cf1469073cf29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bd5211560a9cf570b06d4840b175070cade05d76e80fc73b0bd8204499dd2b0d
[INFO] running `Command { std: "docker" "start" "-a" "bd5211560a9cf570b06d4840b175070cade05d76e80fc73b0bd8204499dd2b0d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `Punct`
[INFO] [stderr]  --> src/lexing/mod.rs:3:30
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::syntax::{Keyword, Punct, Token, TokenType};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `parent`
[INFO] [stderr]    --> src/execution/mod.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/execution/mod.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/execution/mod.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         self.exec_expr(&expr);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `parent`
[INFO] [stderr]    --> src/execution/mod.rs:132:5
[INFO] [stderr]     |
[INFO] [stderr] 132 |     parent: Option<&'t Scope<'t>>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/execution/mod.rs:137:12
[INFO] [stderr]     |
[INFO] [stderr] 137 |     pub fn new(parent: &'t Scope) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/execution/mod.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |         self.exec_expr(&expr);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rual-14e5132ea4ae6066
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test lexing::tests::single_comment ... ok
[INFO] [stdout] test lexing::tests::nums ... ok
[INFO] [stdout] test lexing::tests::new_line ... ok
[INFO] [stdout] test lexing::tests::sub_punct ... ok
[INFO] [stdout] test lexing::tests::strings ... ok
[INFO] [stdout] test lexing::tests::tuples ... ok
[INFO] [stdout] test parsing::tests::a_couple_of_declarations ... ok
[INFO] [stdout] test parsing::tests::calc_assignment ... ok
[INFO] [stdout] test parsing::tests::range_declarations ... ok
[INFO] [stdout] test lexing::tests::maps ... ok
[INFO] [stdout] test execution::tests::ranges ... ok
[INFO] [stdout] test parsing::tests::simple_string_declaration ... ok
[INFO] [stdout] test parsing::tests::simple_num_declaration ... ok
[INFO] [stdout] test lexing::tests::a_couple_declarations ... ok
[INFO] [stdout] test execution::tests::numeric_declarations ... ok
[INFO] [stdout] test execution::tests::long_calculations_dont_overflow ... ok
[INFO] [stdout] test lexing::tests::func ... ok
[INFO] [stdout] test lexing::tests::discard ... ok
[INFO] [stdout] test execution::tests::shadowing ... ok
[INFO] [stdout] test execution::tests::string_declarations ... ok
[INFO] [stdout] test lexing::tests::lists ... ok
[INFO] [stdout] test lexing::tests::hi_ord_func ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rual
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd5211560a9cf570b06d4840b175070cade05d76e80fc73b0bd8204499dd2b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd5211560a9cf570b06d4840b175070cade05d76e80fc73b0bd8204499dd2b0d", kill_on_drop: false }`
[INFO] [stdout] bd5211560a9cf570b06d4840b175070cade05d76e80fc73b0bd8204499dd2b0d